feat: Initial project structure for WebTriviasMulti

- Backend: FastAPI + Python-SocketIO + SQLAlchemy
  - Models for categories, questions, game sessions, events
  - AI services for answer validation and question generation (Claude)
  - Room management with Redis
  - Game logic with stealing mechanics
  - Admin API for question management

- Frontend: React + Vite + TypeScript + Tailwind
  - 5 visual themes (DRRR, Retro, Minimal, RGB, Anime 90s)
  - Real-time game with Socket.IO
  - Achievement system
  - Replay functionality
  - Sound effects per theme

- Docker Compose for deployment
- Design documentation

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

backend/app/schemas/__init__.py

@@ -0,0 +1,17 @@
+from app.schemas.question import QuestionCreate, QuestionUpdate, QuestionResponse
+from app.schemas.game import (
+    RoomCreate,
+    RoomJoin,
+    PlayerInfo,
+    GameState,
+    AnswerSubmit,
+    StealAttempt
+)
+from app.schemas.admin import AdminCreate, AdminLogin, Token
+
+__all__ = [
+    "QuestionCreate", "QuestionUpdate", "QuestionResponse",
+    "RoomCreate", "RoomJoin", "PlayerInfo", "GameState",
+    "AnswerSubmit", "StealAttempt",
+    "AdminCreate", "AdminLogin", "Token"
+]